Warning: I thought a cheap moisture meter would be fine for a quick check
It gave me a false dry reading on a slab in a basement job, and I ended up eating the cost of a full tear-out and reinstall six months later. Lost about $3,200 on that one. What's the most reliable meter you guys actually trust?
Honestly, you see it all the time with cheap moisture meters. A pin-type meter is the only real way to check a slab before you put flooring down. Anything else is just guessing.